Abstract: application note, a grounded metal probe was used to simulate a finger during the data gathering experiments , measured at the receiver decreases when a grounded object, such as a finger, comes close to the induced , object touching the sensor is a finger or hand, which is naturally grounded. However, the size of the object touching the sensor is not constant; finger size can vary from person to person, or indeed the , need to be designed for a range of finger sizes, from small to large, to ensure that everyone can ...